# DefaultVerifier MCP

> DefaultVerifier MCP — nutstrut-defaultverifier-mcp. Use this tool when you need to verify the authenticity of signed SAR v0.1 settlement receipts offline, solving problems related to secure transaction validation. It takes signed receipts and a bundled key registry as input, and outputs verification results, leveraging Ed25519 signatures for secure authentication. Ideal for use cases requiring offline verification of settlement receipts, such as in secure financial transactions or data validation scenarios.

Canonical page: https://skillsregistry.net/skills/nutstrut-defaultverifier-mcp  
JSON: https://api.skillsregistry.net/v1/skills/nutstrut-defaultverifier-mcp

## Description

Verifies signed SAR v0.1 settlement receipts offline using Ed25519 signatures and bundled key registry.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-09-03

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-03

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/f0g26bc2tm)
- **Repository:** <https://github.com/nutstrut/defaultverifier-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nutstrut-defaultverifier-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nutstrut-defaultverifier-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nutstrut-defaultverifier-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt